.reveal {
	background-image: url('sonnenaufgang.jpg');
}

.reveal .slides > section,
.reveal .slides > section > section {
	text-align: left;
	font: Bookman Old Style;
	font-size: 7vh;
	color: black;
	text-shadow: 0px -1px 4px white, 0px -2px 10px yellow, 0px -10px 20px #ff8000, 0px -18px 40px red;
}